发明名称 |
A PROCESS TO PREPARE A CYCLIC OLIGOMER AND A CYCLIC OLIGOMER OBTAINABLE THEREBY |
摘要 |
A process to prepare a cyclic polyester oligonner composition comprising a cyclic polyester oligomer having furanic units is disclosed. The process comprises the step of reacting a monomer component in the presence of an optional catalyst and/or optional organic base in a ring closing oligomerization step under conditions of a reaction temperature and reaction time sufficient to yield a cyclic polyester oligomer having furanic units. The invention further relates to a cyclic polyester oligomer composition obtainable by said process, wherein the cyclic polyester oligomer composition comprises a cyclic polyester oligomer of structure Y1 or Y2 having furanic units, wherein the composition contains less than 5 %, preferably 3, most preferably 1 weight % of linear oligomeric polyester species in the composition. The present invention further relates also to the use of said cyclic polyester oligomer composition in the production of a polyester polymer. |
申请公布号 |
WO2014139603(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
WO2013EP74883 |
申请日期 |
2013.11.27 |
申请人 |
SULZER CHEMTECH AG |
发明人 |
COSTA, LIBORIO IVANO, DR.;NISING, PHILIP, DR.;TANCINI, FRANCESCA;PFISTER, DAVID;STORTI, GIUSEPPE, PROF. DR.;MORBIDELLI, MASSIMO |
分类号 |
C08G63/78;C08G63/87;C08L67/02 |
主分类号 |
C08G63/78 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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